摘要
鉴于电流是影响SoC(State of Charge)估算精度的一个重要因素,提出了一种优化的霍尔传感器电路用于检测动力电池的充放电电流。系统主要包括信号调理、A/D转换以及数字隔离等部分,并采用零点漂移值补偿和滑动平均滤波等方式处理采集的电流值。在静态温漂测试、静态充电测试以及动态车载测试的基础上,通过对比分流器检测电路、IT 700-S检测电路的数据,验证了方案采集的数据的精确性。
In view of current is one of the important factors affecting the SoC estimation accuracy, propose a optimal method what use the Hall sensor to measure power battery charging and discharging current. The system mainly includes signal regulation, A/D converter and digital isolator, and uses the zero drift current compensation and the average filter to process the acquired current. The project which based on the static temperature drift detection, the static charging current detection and the dynamic driving vehicle detection uses the detecting data of resistance shunt circuit and IT 700-S detected circuit as the reference to verify the accuracy of the scheme measured data.
出处
《电子技术应用》
北大核心
2014年第7期69-71,74,共4页
Application of Electronic Technique
基金
国家863计划(2012AA110407)
